AS level n 1. (Education) a. a public examination taken for the General Certificate of Education, with a smaller course content than an A level: since 2000 taken either as the first part of a full A level or as a qualification in its own rightb. the course leading to this examinationc. (as modifier): AS-level English. 2. (Education) a pass in a subject at AS level: I’ve got three AS levels. Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014